Tara Kiran1,2,3,4, Rahim Moineddin2,3, Alexander Kopp3, Eliot Frymire5,6, Richard H Glazier7,2,3,8,9. 1. Department of Family and Community Medicine and the Centre for Urban Health Solutions in the Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada tara.kiran@utoronto.ca. 2. Department of Family and Community Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada. 3. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada. 4. Health Quality Ontario, Ontario, Canada. 5. Institute for Clinical Evaluative Sciences, Kingston, Ontario, Canada. 6. Centre for Health Services and Policy Research, Queens University, Kingston, Canada. 7. Department of Family and Community Medicine and the Centre for Urban Health Solutions in the Li Ka Shing Knowledge Institute, St Michael's Hospital, Toronto, Ontario, Canada. 8. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada. 9. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.
Abstract
PURPOSE: Compared with other high-income countries, Canada and the United States have among the highest rates of emergency department use and the lowest rates of primary care physicians reporting arrangements for after-hours care. We assessed whether enrollment in a medical home mandated to provide after-hours care in Ontario, Canada, was associated with reduced emergency department use. METHODS: We conducted a retrospective cohort study using linked administrative data. We included all adult Ontarians enrolled in a medical home between April 1, 2005, and March 31, 2012, who had a minimum of 3 years of outcome data before and after enrollment (N = 2,945,087). We performed a linear segmented analysis with patient-level data to understand the association between initial enrollment in a medical home and emergency department visits, the proportion of all primary care visits occurring on the weekend, and the primary care visit rate. Age, income quintile, comorbidity, and morbidity were included in the modeling as time-varying covariates and sex as a stable variable. RESULTS: The emergency department visit rate increased by 0.8% (95% CI, 0.7% to 0.9%) per year before medical home enrollment and by 1.5% (95% CI, 1.4% to 1.5%) per year after the transition. Enrollment in a medical home was associated with an increase in the proportion of visits that occurred on weekends, but a decrease in the overall primary care visit rate. CONCLUSIONS: Enrollment of adult Ontarians in a primary care medical home offering after-hours care was not associated with a reduction in emergency department use. It will therefore be important to prospectively evaluate policy reforms aimed at improving access to primary care outside of conventional hours.
PURPOSE: Compared with other high-income countries, Canada and the United States have among the highest rates of emergency department use and the lowest rates of primary care physicians reporting arrangements for after-hours care. We assessed whether enrollment in a medical home mandated to provide after-hours care in Ontario, Canada, was associated with reduced emergency department use. METHODS: We conducted a retrospective cohort study using linked administrative data. We included all adult Ontarians enrolled in a medical home between April 1, 2005, and March 31, 2012, who had a minimum of 3 years of outcome data before and after enrollment (N = 2,945,087). We performed a linear segmented analysis with patient-level data to understand the association between initial enrollment in a medical home and emergency department visits, the proportion of all primary care visits occurring on the weekend, and the primary care visit rate. Age, income quintile, comorbidity, and morbidity were included in the modeling as time-varying covariates and sex as a stable variable. RESULTS: The emergency department visit rate increased by 0.8% (95% CI, 0.7% to 0.9%) per year before medical home enrollment and by 1.5% (95% CI, 1.4% to 1.5%) per year after the transition. Enrollment in a medical home was associated with an increase in the proportion of visits that occurred on weekends, but a decrease in the overall primary care visit rate. CONCLUSIONS: Enrollment of adult Ontarians in a primary care medical home offering after-hours care was not associated with a reduction in emergency department use. It will therefore be important to prospectively evaluate policy reforms aimed at improving access to primary care outside of conventional hours.
Keywords:
access to health care; after-hours care; continuity of patient care; emergency care; health care reform; health care utilization; medical home; primary care
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